Dab tsi yog poob dab tsi Casting?

Poob plhaub casting yog ib hom kab iav. Lub txheej txheem tseem ceeb yog kom sov lub iav kom muaj kev kub siab kom nws nkag mus thiab khiav mus rau hauv ib lub poom ua ntej. Txij li cov pwm plhaub yog tsim los ntawm qhov tshem tawm cov pwm tom qab cua sov, nws yog hu ua plaster casting.

Cov khoom ntim ntawm lub plhaub (plhaub) - plhaub mould - plhaub tuag - casting - vibrating plhaub kev kho mob